An elastic liposomal formulation for RNAi-based topical treatment of skin disorders: Proof-of-concept in the treatment of psoriasis

作者：Desmet Eline^*; Bracke Stefanie; Forier Katrien; Taevernier Lien; Stuart Marc C A; De Spiegeleer Bart; Raemdonck Koen; Van Gele Mireille; Lambert Jo

来源：International Journal of Pharmaceutics, 2016, 500(1-2): 268-274.

DOI：10.1016/j.ijpharm.2016.01.042

• Lipid-based nanoparticle
• Skin disorder
• RNA interference
• Liposome
• Topical drug delivery
• Gene therapy

RNA interference (RNAi) is a rapidly emerging approach for targeted gene silencing to alleviate disease pathology. However, lack of efficient carriers for targeted delivery delays the clinical translation of RNAi. An interesting target for local RNAi therapeutics is the skin as it allows direct access to target cells. Still, applications are limited due to the effective skin barrier which hinders penetration. Herein, a description is given of a liposomal carrier, called 'DDC642', capable of delivering RNAi molecules to the epidermis of impaired and intact human skin, without targeting the dermis or circulatory system. In a psoriasis tissue model, down-regulation of the psoriasis marker human beta-defensin 2 by DDC642-delivered siRNA was confirmed, providing proof-of-concept. These liposomes thus hold great potential as topical delivery system for RNAi therapeutics in the treatment of numerous skin diseases.

• 出版日期2016-3-16